The Internet of Things traffic card is a medium that can be linked and identified with other intelligent products, and the biggest feature is that the information on the card can be exchanged with the Internet management system and center through an intermediate device. There is no difference in the appearance of the IoT card and the mobile phone SIM card, and they can also be linked to the network, the difference is that the IoT card generally has voice call and SMS functions.
In terms of the current use of IoT cards, they can be used in various application scenarios of IoT devices, such as Internet of Vehicles, smart homes, wearable devices, shared bicycles, mobile payment, environmental monitoring and smart agriculture. So, what are the classifications of IoT traffic cards?
There are different standards for the classification of IoT cards, for example, according to the manufacturer, the classification of IoT traffic cards can be divided into: mobile IoT traffic cards, China Unicom IoT traffic cards and telecom IoT traffic cards. Different operators have different advantages of data cards, and users can choose reasonably according to their needs.
IoT cards can be divided into ordinary IoT cards, NB IoT cards, and VPDN directional special cards according to different usage scenarios. Ordinary IoT card is the most common IoT connection method, which includes traffic card, IoT voice card and various traffic**;Narrowband Internet of Things (NB-IoT) technology is a low-power wide-area network communication technology with the characteristics of low cost, low power consumption and wide coverageVPDN directional special cards are mainly used in some scenarios with high security requirements, such as public utilities, ** and other fields.
According to the different installation methods, it can be divided into: the first is a plug-in card (MP card), which is similar in appearance to a SIM card, but this IoT card is more powerful and can be used in extremely low or high temperature environments to adapt to different harsh external environments. The second is the SMD card (MS card), which not only has the advantages of plug-in IOT card, but also has higher requirements for anti-vibration indicators, so this IOT card can be welded to the equipment.
Typically, MS cards are only used for production front-load, while MP cards are likely to be used for both front-loading and post-installation. MS caine is small in size, shock-resistant, high-temperature resistant, and has a long service life, and is often used in automotive front-mounting, smart meter reading, and wearable devices. MP cards, on the other hand, have a wider range of applications due to their low cost and ease of installation.